Acefast, a rising name in smart audio technology, has unveiled its latest innovation: the AceFit Air Open Ear Bluetooth 5.4 Sports Headphones. Built for fitness enthusiasts and on-the-go users, these lightweight, high-performance earbuds combine sleek design, advanced audio engineering, and practical features. The headphones are now available on Amazon US for $79.99 and Amazon UK for £89.99, with special launch discounts.
Lightweight Comfort Meets Durability
At just 7.5 grams per earbud, the AceFit Air headphones prioritize comfort without sacrificing durability. The earbuds feature 0.7mm Ni-Ti memory wire and a super molecular liquid silicone coating, ensuring a secure yet barely-there fit, even during high-intensity activities like running or cycling. The accompanying charging case, measuring only 1.04 inches thick, adds to their portability, making them an ideal choice for both workouts and daily commutes.
The headphones boast an IP54 water resistance rating, guarding against sweat and splashes to handle workouts in various conditions.

Immersive Sound with Cutting-Edge Engineering
The AceFit Air headphones are equipped with a 3-magnet super-linear speaker system developed in collaboration with Luxshare-ICT, delivering powerful bass, clear highs, and an immersive listening experience. A 20mm rectangular audio driver paired with a multi-magnetic circuit design ensures balanced, dynamic sound.
Users can fine-tune their listening preferences using the ACEFAST app, which offers customizable EQ settings and AELC digital enhancement. The result is a tailored audio experience that rivals premium in-ear headphones.

Features for Modern Lifestyles
AceFit Air headphones include dual-device connectivity, allowing seamless switching between two Bluetooth devices. ENC noise cancellation technology, supported by four microphones, ensures crystal-clear call quality even in noisy environments.
With up to 36 hours of total playtime, including charges from the case, these headphones are built for endurance. A quick 10-minute charge provides an impressive 2 hours of playtime, thanks to fast-charging capabilities.
Key Specifications for AceFit Air Sports Headphones
- Bluetooth Version: 5.4
- Pairing Name: ACEFAST ACEFIT Air
- Audio Codec: SBC, AAC
- Battery Life:
- Earbuds: Up to 8 hours (music), 6 hours (talk)
- With Case: Up to 25 hours
- Quick Charge: 10 minutes for 2 hours of use
- Charging Time:
- Earbuds: 1 hour
- Case: 2 hours (USB-C)
- Water Resistance: IP54 (sweat and splash-proof)
- Weight: 7.5g per earbud
- Materials: ABS, PC, Silicone
- Sound Range: 50Hz–20kHz
- Speaker Design: Multi-magnetic ultra-linear dynamic coil
- Transmission Distance: 10 meters (33 feet)
Pricing and Availability
The AceFit Air headphones are priced at $79.99 on Amazon US and £89.99 on Amazon UK. Customers can take advantage of launch promotions for additional savings.

